Groups are now triggered spawns, usually the highest value singleton. Drones will get aggro from new spawns. Waves auto aggro you and/or drones.

No hostiles at initial gate

Blitz

Destroy all structures before destroying the first wave unlocks the gates without any further waves. This works for Pockets 1 to 4.
Bring an afterburner as some structures are 80+ km from warpin.
Mission is completed after the named BC and the two Spider Drones in Pocket 5 are destroyed.

Wave 2

Structures

Angel Bunker and Storage Silo may drop random ammo

Pocket 4

Cruiser doesn't aggro unless it or the Towers are attacked, but may aggro drones. Will follow the drones and attack them but will head back to initial position if drones are back in drone bay without attacking you even if very close.

Wave 5

Structures

No loot
Total Bounty around 2.8 mil

Bonus Pocket (optional)

Needs Angel Palladium tag to enter, not consumed.

You warp in roughly 75-90km from the rats, which all aggro immediately except for the sentry, presumably because it's out of range. Angel Vipers/Webifier close in pretty fast, other frigs are a little slower. There are no triggers or respawns reported.

Structures

Battlestation drops loot. Be prepared to shoot a long time. (The loot can be generic and unimpressive, and generally not worth it. At 200dps it will take about ten minutes. The explosion, on the other hand, is gigantic.)

Terzam's Stash drops random generic loot as well

Tip

Watch out for heavy webbing/scrambling in the bonus stage.
Saint uses Bane torpedoes [explo.] AND some shorter range [45 km?] weapon with thermal damage.
Nephilim does a fair amount of explosive damage using Bane torpedoes
Warlord does a fair amount of explosive damage using Bane torpedoes